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Front-face fluorescence spectroscopy and chemometrics for quality control of cold-pressed rapeseed oil during storage

2019Journal article Open access
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dc.contributor.authorSikorska, Ewa
dc.contributor.authorWójcicki, Krzysztof
dc.contributor.authorKozak, Wojciech
dc.contributor.authorGliszczyńska-Świgło, Anna
dc.contributor.authorKhmelinskii, Igor
dc.contributor.authorGórecki, Tomasz
dc.contributor.authorCaponio, Francesco
dc.contributor.authorParadiso, Vito M.
dc.contributor.authorSummo, Carmine
dc.contributor.authorPasqualone, Antonella
dc.date.accessioned2020-02-14T13:27:00Z
dc.date.available2020-02-14T13:27:00Z
dc.date.issued2019
dc.description.abstractThe aim of this study was to test the usability of fluorescence spectroscopy to evaluate the stability of cold-pressed rapeseed oil during storage. Freshly-pressed rapeseed oil was stored in colorless and green glass bottles exposed to light, and in darkness for a period of 6 months. The quality deterioration of oils was evaluated on the basis of several chemical parameters (peroxide value, acid value, K232 and K270, polar compounds, tocopherols, carotenoids, pheophytins, oxygen concentration) and fluorescence. Parallel factor analysis (PARAFAC) of oil excitation-emission matrices revealed the presence of four fluorophores that showed different evolution throughout the storage period. The fluorescence study provided direct information about tocopherol and pheophytin degradation and revealed formation of a new fluorescent product. Principal component analysis (PCA) performed on analytical and fluorescence data showed that oxidation was more advanced in samples exposed to light due to the photo-induced processes; only a very minor effect of the bottle color was observed. Multiple linear regression (MLR) and partial least squares regression (PLSR) on the PARAFAC scores revealed a quantitative relationship between fluorescence and some of the chemical parameters.pt_PT
dc.description.sponsorshipFunding Agency Ministry of Science and Higher Education, Poland NN312428239 Poznan University of Economics and Businesspt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/foods8120665pt_PT
dc.identifier.eissn2304-8158
dc.identifier.urihttp://hdl.handle.net/10400.1/13512
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectFluorescencept_PT
dc.subjectRapeseed oilpt_PT
dc.subjectMultiway analysispt_PT
dc.subjectParallel factor analysis (PARAFAC)pt_PT
dc.subjectMultivariate regressionpt_PT
dc.titleFront-face fluorescence spectroscopy and chemometrics for quality control of cold-pressed rapeseed oil during storagept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue12pt_PT
oaire.citation.startPage665pt_PT
oaire.citation.titleFoodspt_PT
oaire.citation.volume8pt_PT
person.familyNameKhmelinskii
person.givenNameIgor
person.identifier0000000420541031
person.identifier.ciencia-id0D1A-CB6C-6316
person.identifier.orcid0000-0002-6116-184X
person.identifier.ridC-9587-2011
person.identifier.scopus-author-id6701444934
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationfcb9f09f-2e99-41fb-8c08-7e1acbc65076
relation.isAuthorOfPublication.latestForDiscoveryfcb9f09f-2e99-41fb-8c08-7e1acbc65076

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